Alert archive / Texas / Flash Flood Warnings in 1987
Flash Flood Warning 67, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 10, 1987, 8:09 PM CDT for Medina County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 10, 1987, 8:09 PM CDT (01:09 UTC)
- Expired
- Jun 10, 1987, 11:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Medina County, TX
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 1.2 hours before the alert went out and 168 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1795 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 1176 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- -3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSAT 110109
FFWSAT
TXC325-110415-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
809 PM CDT WED JUN 10 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 1115 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH TEXAS
...MEDINA
AT 805 PM HONDO RADAR INDICATES THUNDERSTORMS PRODUCING VERY HEAVY RAI
OVER EASTERN MEDINA COUNTY AND OTHER THUNDERSTORMS ARE MOVING INTO
THE SOUTHERN PORTION OF THE COUNTY. THESE THUNDERSTORMS ARE MOVING TO
THE NORTH AT AROUND 15 MPH. FM ROAD 1343 IN EASTERN MEDINA COUNTY HAS
BEEN CLOSED DUE TO HIGH WATER. MANY CREEKS AND LOW WATER CROSSINGS IN
THE NORTHERN PART OF THE COUNTY ARE RISING DUE TO RUNOFF FROM HEAVY
RAIN IN BANDERA COUNTY.
REMEMBER...DEATHS DURING FLASH FLOODING ARE FREQUENTLY RELATED TO
MOTORISTS DRIVING INTO FLOODED LOW WATER CROSSINGS OR FROM CHILDREN
PLAYING NEAR FLOODED STREAMS OR DRAINAGE AREAS.
YOU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR
SEVERE WEATHER REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE.
PLEASE LISTEN TO YOUR LOCAL RADIO...TV OR NOAA WEATHER RADIO STATION
FOR LATER STATEMENTS OR WARNINGS REGARDING THIS+ SEVERE WEATHER EVENT.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN
REPORTED.What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 10, 5:14 PM CDT, 2 hours 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 513 PM CDT WED JUN 10 1987 AT 510 PM CDT NO PRECIPITATION WAS OCCURRING IN VAL VERDE COUNTY. WATER FROM THE HEAVY RAINS THAT OCCURRED EARLIER TODAY IN SUTTON COUNTY...2 1/2 INCHES WAS REPORTED EAST OF OZONA...HAS FINALLY MADE ITS WAY INTO NORTHERN VAL VERDE COUNTY. HIGHWAY 189 IN THE NORTHERN PART OF THE COUNTY FROM THE JUNCTION OF HIGHWAY 163 NEAR JUNO TO THE NORTHERN VAL VERDE COUNTYA LINE IS CLOSED. THE HIGHWAY DEPARTMENT REPORTED NEARLY 8 INCHES OF WATER WAS OVER THE ROAD ON SOME OF THE LOW WATER CROSSINGS. MOTORISTS TRAVELING IN NORTHERN VAL VERDE COUNTY ALONG HIGHWAY 189 SHOULD NOT ATTEMPT TO CROSS LOW WATER CROSSINGS.
Special weather statement, Jun 10, 7:43 PM CDT, 26 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 743 PM CDT WED JUN 10 1987 AT 735 PM CDT RADAR INDICATED RAINSHOWERS AND THUNDERSTORMS IN NORTHEASTERN VAL VERDE COUNTY...35 MILES NORTH OF DEL RIO BETWEEN LOMA ALTA AND JUNO. THE STRONGEST THUNDERSTORM WAS IN THE EXTREME NORTHEAST PORTION OF THE COUNTY. MOVEMENT OF THE THUNDERSTORMS WAS TO THE NORTH AT 15 MPH. SMALL HAIL...HEAVY RAIN...STRONG GUSTY WINDS AND FREQUENT DANGEROUS LIGHTNING ARE POSSIBLE WITH THESE STORMS. WATER FROM THE HEAVY RAINS THAT OCCURRED EARLIER TODAY IN SUTTON COUNTY...2 1/2 INCHES WAS REPORTED EAST OF OZONA...HAS FINALLY MADE ITS WAY INTO NORTHERN VAL VERDE COUNTY. HIGHWAY 189 IN THE NORTHERN PART OF TkHE COUNTY FROM THE JUNCTION OF HIGHWAY 163 NEAR JUNO TO THE NORTHERN VAL VERDE COUNTY LINE REMAINED CLOSED. MOTORISTS TRAVELING IN NORTHERN VAL VERDE COUNTY ALONG HIGHWAY 189 SHOULD NOT ATTEMPT TO CROSS LOW WATER CROSSINGS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 10:45 AM CDT | Flash Flood Warning | EWX | Guadalupe | 3 hr |
| Jun 11, 11:14 AM CDT | Flash Flood Warning | EWX | Bexar | 106 min |
| Jun 11, 12:55 PM CDT | Flash Flood Warning | EWX | Bexar | 2 hr |
| Jun 11, 6:47 PM CDT | Flash Flood Warning | EWX | Real | 3 hr |
Nearby
Flash Flood Warnings in Texas, 1987Every flash flood warning in 1987
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.